Nuclear Physics B (Oct 2016)

Towards NMHV amplitudes at strong coupling

  • A.V. Belitsky

DOI
https://doi.org/10.1016/j.nuclphysb.2016.08.016
Journal volume & issue
Vol. 911, no. C
pp. 517 – 562

Abstract

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Pentagon Operator Product Expansion provides a non-perturbative framework for analysis of scattering amplitudes in planar maximally supersymmetric gauge theory building up on their duality to null polygonal superWilson loop and integrability. In this paper, we construct a systematic expansion for the main ingredients of the formalism, i.e., pentagons, at large 't Hooft coupling as a power series in its inverse value. The calculations are tested against relations provided by the so-called Descent Equation which mixes transitions at different perturbative orders. We use leading order results to have a first glimpse into the structure of scattering amplitude at NMHV level at strong coupling.